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A Cost Effective Treatment for Headache in Pregnancy When Acetaminophen Alone is Ineffective.

Information source: St. Louis University
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Headache

Intervention: Metoclopramide (Drug); Diphenhydramine (Drug); Codeine (Drug)

Phase: N/A

Status: Completed

Sponsored by: St. Louis University

Official(s) and/or principal investigator(s):
Katherine Scolari, MD, Principal Investigator, Affiliation: St. Louis University


To determine if the intravenous administration of Metoclopramide and diphenhydramine in combination can effectively treat headaches in pregnant patients in those refractory to acetaminophen when compared to codeine

Clinical Details

Official title: Metoclopramide and Diphenhydramine (MAD): A Cost Effective Treatment for Headache in Pregnancy When Acetaminophen Alone is Ineffective (MAD Headache Study)

Study design: Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Primary outcome: Number of Participants with Adequate relief of headache as a Measure of efficacious

Detailed description: This is a randomized, controlled study based on prospective collection of data during the study subjects' hospital stays, questioning at 30 minutes and 1, 6, and 24 hours after administration, and a post-study questionnaire at 24 hours. Subjects who agree to participate in the study will have already tried a standard effective dose of acetaminophen (650 to 1000mg) without relief and are requesting further medication. Intravenous (IV) access will be obtained and administration of 10mg Metoclopramide IV and 25mg Diphenhydramine IV drawn up in the same syringe will be given to subjects randomized to Group A, while those randomized to Group B (control group) will receive standard treatment consisting of a codeine 30mg tablet. Each subject will be asked if they had relief or persistence/recurrence of symptoms at 30 minutes, 1 hour and 6 hours after initial receipt of study medications. An additional dose of 10 mg IV metoclopramide + 25 mg IV diphenhydramine or codeine 30 mg tablets would be given at one hour if the patient did not have adequate relief the first time. If headache does not subside or recurs after second dose, regular non protocol medicines may be administered upon doctor recommendation. Patients will again be asked about headache at 24 hours and asked to complete a questionnaire regarding tolerance of medication, any adverse reactions experienced, persistence/recurrence of headache after administration of study medication, timing of occurrence with regard to administration, requirements of a second dose of study medication or other use of headache or nausea medication not included in protocol, satisfaction or relief of headache on a Likert scale from 0 to 10 after administration of medication if given at 1 hr interval. Randomization Subjects will be randomized to GROUP A or GROUP B. An order will be placed to the SMHC pharmacy for the respective Group and will send up the medication assigned. The pharmacy will know which medications are in Group A and which are in Group B. On the pharmacy order sheet, the research team will indicate which group each subject is randomized to. The pharmacy will supply the medications and one of the nurses on the 5th floor will administer them.


Minimum age: 14 Years. Maximum age: 50 Years. Gender(s): Female.


Inclusion Criteria: Pregnant women with a BMI greater than or equal to 30 kg/m squared, aged 14-50 years old, undergoing non-emergent cesarean section for delivery. Exclusion Criteria: Patients undergoing emergency Cesarean-section Pre-existing concurrent infection other than chorioamnionitis State of immunosuppression (ie. HIV, cancer) Long-term steroid use (>2 days) Patients with a BMI <30 kg/m2

Locations and Contacts

Saint Louis University, St. Louis, Missouri 63117, United States
Additional Information

Starting date: January 2012
Last updated: November 17, 2014

Page last updated: August 23, 2015

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